Apparatus for arresting carbon in chimneys



H. CHASE.

Arresting Carbon in Chimneys.

Patented Sept. 2,1856.

UNITED STATES PATENT OFFICE.

. HEZEKIAH CHASE, OF LYNN, MASSACHUSETTS.

APPARATUS FOR ARRESTING CARBON IN GHIMNEYS.

Specification of Letters Patent No. 15,645, dated September 2, 1856.

companying drawing, letters, figures, and

references thereof.

Said drawing exhibits a vertical sectional view of a portion of achimney'or flue having my apparatus applied thereto.

In such drawing A, denotesthe chimney within which is placed an annularcylindric vessel or water receiver B, B, which water receiver is made tosurround a cylindric or tubular smoke passage or flue, constituting thelower part of the chimney, The smoke from the fireplace is led into thebottom of this and made to pass up through it and impinge against aconcave surface or meniscus or dome plate, C, placed on and above it andwithin the upper part of the chimney.

A pipe D, from a water tank or cistern or from a force pump leadsthrough the chimney and supports the meniscus or dome defiector, and hason'its top and communicates with a cylindrical box, E, in the top ofwhich a series of jet pipes are arranged as seen at, F, and so as tothrow water from said box up into the chimney in numerous jets orstreams, and so that some if not all of said jets shall fall down on thetop of the deflector plate or dome, where uniting together they are madeto pass in a sheet or nearly in a sheet over its edge, and down into thereceiving cistern or reservoir.

By making the water to pass from the top of the deflector plate in avery thin sheet, the smoke and volatile products of combustion strikingagainst the underside of this deflector plate are compelled to pierceand pass through this sheet of water before they can enter that part ofthe chimney which is above the deflector plate. On entering such part ofthe chimney, these volatile products of combustion will be subject tocontact with the numerous jets of water playing therein, and a largeportion of all of that carbon remaining in them and not abstracted bythe circular sheet of water passing over the edge of the disk, will beabstracted by the jets and carried down into the reservoir in the lowerpart of the chimney.

The meniscus disk or deflector performs two functions, the principal onebeing that of producing a sheet of water from its edge as abovespecified. Second, that of deflecting the smoke into the sheet close tothe edge of the plate, where it is formed, for after the sheet haspassed down a short distance from the edge it is liable to become moreor less broken up into streams, and this liability to be so broken upwill be facilitated by the action of the current of smoke against the.

dripping water. Most of the carbon and heavier matters in the volatileproducts of combustion will be separated from the lighter mattersthereof, by such means and will be carried down into the waterreservoir. The surplus water of such reservoir and carbon being allowedto pass off through the pipe I, leading out of the reservoir.

By the above apparatus applied to a chimney of various kinds offurnaces, I am enabled not only to effect a saving of carbon, which maybe employed for various useful purposes in the arts, but to deprive thevolatile products of combustion of that which often proves a greatnuisance to cities, towns, and other places; for it is well known, wherelarge furnaces are used for manufacturing purposes, the carbon of theirsmoke and volatile products of combustion being received into thesurrounding atmosphere is not only disagreeable, but injurious topersons or surrounding objects.

I do not claim the introduction of jets of water into a chimney for thepurpose of arresting sparks or carbonaceous matter, as I am aware thatsuch has been accomplished before on the chimneys of locomotive engines.

My invention is more properly an improvement 011 that, for which LettersPatent were granted June 19th, 1847, to James A. Cutting and GeorgeButterfield, of Boston, in the State of Massachusetts.

The most essential feature of my improvement and that which differs fromanything in the apparatus of Cutting and Butterfield, being that part ofmy device whose oflice is to produce a thin sheet of water, close to andsurrounding the edge of a meniscus deflector placed over the mouth ofthe discharge flue within the chimney. Nothing of this kind is found inthe invention of Cutting and Butterfield, wherein streams of water onlyare employed.

In my improved smoke consuming apparatus, I use streams and a deflector,as do Cutting and Butterfield, but in addition' to the principle commonto both, I so arrange the jet pipes, that the jets of water may fall onthe top of the deflector, and be discharged over its edge in a thinsheet.

WVhat therefore I claim as my improvement is Arranging the jet pipes,the deflector, and discharge fine, so that the water may first fall onthe top of the deflector, and be discharged in a thin sheet over itsedge, and around the mouth of the discharge fine as set forth, and thiswhether the streams fall directly downward from the jet pipes and uponthe deflector, or whether they may be first discharged upward, and nextbe caused to fall back and upon the top of the deflector, and so thatsuch streams may serve not only to arrest carbonaceous matters which mayescape or pass by and rise above the deflector, but to return them, andcause them to be thrown'into the receiver, B, after they have fallenwith the streams upon the said deflector.

In testimony whereof I have hereunto set my signature this seventh dayofAugust, A. D. 1856. i i

H. CHASE.

IVitnesses R. H. EDDY, ARTHUR NniLL.

